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authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>2016-08-05 15:22:36 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-08-09 10:48:09 -0300
commitcb3f3378cd09aa3fe975b4ad5ee0229dc76315bb (patch)
treec484ff0676fe81b0a85b2645bcfbe93cc716cf86 /tools
parent8e34189b347d76acf48ce05831176582201b664d (diff)
downloadlinux-stericsson-cb3f3378cd09aa3fe975b4ad5ee0229dc76315bb.tar.gz
perf probe: Fix module name matching
If module is "module" then dso->short_name is "[module]". Substring comparing is't enough: "raid10" matches to "[raid1]". This patch also checks terminating zero in module name. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: http://lkml.kernel.org/r/147039975648.715620.12985971832789032159.stgit@buzz Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/probe-event.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index d5ccb656fd81..1201f73ca723 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -170,8 +170,10 @@ static struct map *kernel_get_module_map(const char *module)
module = "kernel";
for (pos = maps__first(maps); pos; pos = map__next(pos)) {
+ /* short_name is "[module]" */
if (strncmp(pos->dso->short_name + 1, module,
- pos->dso->short_name_len - 2) == 0) {
+ pos->dso->short_name_len - 2) == 0 &&
+ module[pos->dso->short_name_len - 2] == '\0') {
return pos;
}
}